PORP case studies

PORP · Put your knowledge to work in context.

The PORTS Operations and Maintenance Professional Certification (often shortened to PORP) is an independent credential for people who keep Physical Oceanographic Real-Time System installations running and whose data stays trustworthy. It suits field technicians, electronics and telemetry specialists, data-quality analysts, and coastal engineers moving into operational oceanography. The PORP case studies are 5 cases and about 3,116 words.

Adding a Wave Buoy Under a Short-Term Grant

A mid-sized seaport operates a NOAA PORTS installation with four stations: water level, currents, meteorology, and visibility. The port authority has received a state grant to add a wave buoy and a second current profiler and wants the data on its own public dashboard within 90 days.

662 words, about 3 min 2

Cellular Degradation and Power Budget During a Winter Storm

An exposed coastal PORTS station reports 6-minute water level, wind, and water temperature over a cellular modem, with an Iridium backup. During a nor'easter, cellular latency rises from 2 minutes to 35 minutes and about 20% of packets are lost.

621 words, about 3 min 3

Pressure Sensor Offset After a Freshwater Flood

A PORTS water-level station in a brackish estuary uses a vented pressure transducer as primary and a co-located acoustic gauge as backup. Over 10 days, the primary reads 3–5 cm lower than the backup at low slack, but the two agree within 1 cm at high tide.

626 words, about 3 min 4

Transferred Station Datum and Conflicting Predictions

A new PORTS water-level station is installed at a ferry terminal. Because the nearest NOAA tide gauge is 8 km away, the station datum was transferred by a 30-day simultaneous comparison.

616 words, about 3 min 5

ADCP Settlement and Heading Error at a Bridge Pier

A PORTS current station uses a bottom-mounted ADCP on a bridge pier in a tidal channel. After a spring flood, a scour hole forms near the mount, and the ADCP's pressure sensor indicates the instrument has settled 0.4 m.

591 words, about 3 min